Cell Signaling Technology's Perforin (E3W4I) Rabbit mAb (BSA and Azide Free) is a Rabbit monoclonal antibody. The Perforin (E3W4I) Rabbit mAb (BSA and Azide Free) Antibody was generated using PRF1 as the antigen. It reacts with Mouse. This antibody has been shown to work in applications such as: Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.